کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1502259 993412 2006 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Lanthanum distribution and dielectric properties of Bi3−xLaxTiNbO9 bismuth layer-structured ceramics
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Lanthanum distribution and dielectric properties of Bi3−xLaxTiNbO9 bismuth layer-structured ceramics
چکیده انگلیسی

Single phases of Bi3−xLaxTiNbO9 (LBTN-x, x = 0.00–1.00) ceramics were studied by dielectric and Raman spectroscopy. With different La contents (x), LBTN-x ceramics exhibit distinct ferroelectric properties. When x = 0.00, 0.25, 0.50, LBTN-x are normal ferroelectrics, while when x > 0.50 they become relaxor ferroelectrics. Raman spectra were used to explain this relaxor phenomenon, which resulted from the fact that La3+ begin to partly substitute the Bi3+ in Bi2O2 layers when the La content x > 0.50.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Scripta Materialia - Volume 55, Issue 9, November 2006, Pages 791–794
نویسندگان
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